-rw-rw----  1 kolbe  kolbe   8.4K Mar 26 17:57 #sql-f3be_1.frm
-rw-rw----  1 kolbe  kolbe    24M Mar 26 17:57 #sql-f3be_1.ibd

https://mariadb.com/blog/get-rid-orphaned-innodb-temporary-tables-right-way